Simply going to factorise this:
v(v - 1) -2(1 - v):
Note 1 - v = -(v-1)
<span>v(v - 1) -2(1 - v)
</span>
<span>v(v - 1) -2(-(v - 1))
</span>
<span>v(v - 1) +2(v - 1)</span>
(v + 2)(v - 1)
We find the difference between the two values:
36.5 - 24.5
= 12.0
The stock increased by 12.0 points.
0 0 0 1 2 2 4 thats the answer
